galaxy-gen

Galaxy-scale astrophysics for the procedural galaxy sim. Morphology, mass distribution, rotation curves, star formation, stellar populations, AGN, mergers. Triggers - galaxy generation, galaxy morphology, spiral arms, elliptical, rotation curve, dark matter halo, IMF, HR diagram, star formation, AGN, supermassive black hole, galaxy merger, Hubble sequence, Tully-Fisher.

Cosmology and relativity for the procedural galaxy sim. Universe-scale physics - Hubble flow, FLRW, redshift, dark sector, gravitational physics, CMB. Sister to the galaxy-scale skill. Triggers - cosmology, FLRW, Hubble's law, redshift, dark energy, dark matter, CMB, cosmic web, gravitational lensing, Schwarzschild, black hole, general relativity, lookback time, comoving distance.

External reference resources for the galaxy sim - real-galaxy catalogs, N-body library design references, Astropy primitives worth mirroring. Use when the sim needs a real-world parameter or validation. Triggers - NASA ADS, SIMBAD, NED, astropy, FITS, sky survey, REBOUND, GADGET, n-body simulation, galaxy catalog, SDSS, GAIA, JWST, Hubble.

Skill-authoring discipline for this repo. Local categories.yaml, hooks stamped from agentic-os via agentic-os-kai. Triggers - skill, SKILL.md, frontmatter, categories.yaml, .agents/skills, skill authoring, skill hygiene, add skill, new skill, skill prefix, pre-commit hook fail.

Procedural galaxy simulation - Rust compiled to WASM, rendered in the browser. Live at https://galaxy-gen.coilysiren.me. Triggers - galaxy-gen, procedural-galaxy-simulation, rust-wasm